# PWR-206 — Wearable navigation: learner worksheet Release: Revision 7T · Full Tutorial Edition Estimated time: Estimated 14 min reading; practical time is provider-set Difficulty: Intermediate Equipment: Common household or practice equipment — Declared Wearable navigation fixture: A six-metre indoor training route has one doorway, one waist-high foam obstacle and no stairs or drop-offs. A wearable gives left, right, stop and obstacle cues; the learner keeps the usual cane.; Setup aid for Set the cue hierarchy: Check battery, network, permissions, cue audibility and emergency contact before movement.; Wearable navigation log: Collision type, drop-off/head obstacle detection, speed, auditory masking, workload, failure recovery and user-chosen adoption; retain Wearable navigation errors, assistance, stop and fallback.; Wearable-navigation provider sheet: from “Navigation aid for blind persons by visual-to-auditory sensory substitution: a pilot study”, extract cue channel, route and support. From the EyeCane study, extract obstacle target, sensor failures and error conditions. Use the WHO/UNICEF report to record the learner’s goal, ordinary cane and preferred fallback. The mobility professional—not either paper—selects this protected route and progression. Space: Open movement area Automated structural checklist: 10 of 10 structural checks present Evidence quality/context: G4; Detailed research depth Automated method-quality band: Comprehensive Method-rating basis: Structure coverage, instruction/check specificity, alternative distinctness, source troubleshooting, comparison depth and whether purpose/check fields are authored rather than derived. Editorial review: Pending manual editorial sign off ## Before you begin - [ ] I read the tutorial authority and stop conditions. - [ ] I have the required equipment/space or a declared accessible alternative. ## Canonical source context A mobility professional introduces four wearable cues on a protected six-metre route while the learner’s ordinary cane remains primary. Map each cue, preview the doorway and foam obstacle, count misses and false alerts, and recover from a staged device failure. Performance on this route cannot establish independent or public navigation. Target outcome: With an orientation-and-mobility professional, the learner maps cues, travels a short controlled route using ordinary aids, counts missed and false alerts and demonstrates failure recovery. ### Authority and setup conditions - Obtain orientation-and-mobility assessment and confirm the approved wearable, route, aid and spotter. - Check battery, network, permissions, cue audibility and emergency contact before movement. - Start check for Wearable navigation: Route geometry and excluded hazards are documented. - Top-of-sheet stop for Wearable navigation: Stop for disorientation, pain, dizziness, sensory overload, unsafe fatigue or loss of balance. ### Required or supplied materials - Declared Wearable navigation fixture: A six-metre indoor training route has one doorway, one waist-high foam obstacle and no stairs or drop-offs. A wearable gives left, right, stop and obstacle cues; the learner keeps the usual cane. - Setup aid for Set the cue hierarchy: Check battery, network, permissions, cue audibility and emergency contact before movement. - Wearable navigation log: Collision type, drop-off/head obstacle detection, speed, auditory masking, workload, failure recovery and user-chosen adoption; retain Wearable navigation errors, assistance, stop and fallback. - Wearable-navigation provider sheet: from “Navigation aid for blind persons by visual-to-auditory sensory substitution: a pilot study”, extract cue channel, route and support. From the EyeCane study, extract obstacle target, sensor failures and error conditions. Use the WHO/UNICEF report to record the learner’s goal, ordinary cane and preferred fallback. The mobility professional—not either paper—selects this protected route and progression. ## 1. Select and inspect the route The professional walks the route, removes uncontrolled hazards and marks start, doorway, foam obstacle and finish. Why: Route geometry and excluded hazards are documented. Success check: Route geometry and excluded hazards are documented. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Route geometry and excluded hazards are documented.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 2. Set the cue hierarchy Agree that cane contact, direct perception and the professional’s stop command override the wearable; uncertainty means stop. Why: The learner teaches back the hierarchy. Success check: The learner teaches back the hierarchy. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “The learner teaches back the hierarchy.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 3. Fit and configure the wearable The professional checks fit, volume or vibration, battery, permissions, privacy and emergency control. Why: Cues are detectable without masking critical sound or causing discomfort. Success check: Cues are detectable without masking critical sound or causing discomfort. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Cues are detectable without masking critical sound or causing discomfort.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 4. Learn cues while stationary Present left, right, stop and obstacle in random order with immediate correction. Why: The learner meets the provider’s criterion before walking. Success check: The learner meets the provider’s criterion before walking. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “The learner meets the provider’s criterion before walking.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 5. Preview with the established aid Travel the route once with the cane and professional, without relying on wearable cues, to establish time and obstacle contacts. Why: A valid comparator and route memory note are recorded. Success check: A valid comparator and route memory note are recorded. Accessible alternative: A visible, captioned or haptic version of “Travel the route once with the cane and professional, without relying on wearable cues, to establish time and obstacle contacts.” can rehearse the response sequence, but it removes the declared auditory stimulus and is therefore a related activity, not an equivalent attempt at Wearable navigation. To preserve the target, keep the authored sound and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “A valid comparator and route memory note are recorded.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 6. Travel aid plus wearable At the set pace, announce or act on cues, stop on conflict and never step into an unverified space. Why: The learner reaches the finish with route, support and interventions logged. Success check: The learner reaches the finish with route, support and interventions logged. Accessible alternative: A visible, captioned or haptic version of “At the set pace, announce or act on cues, stop on conflict and never step into an unverified space.” can rehearse the response sequence, but it removes the declared auditory stimulus and is therefore a related activity, not an equivalent attempt at Wearable navigation. To preserve the target, keep the authored sound and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “The learner reaches the finish with route, support and interventions logged.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 7. Inject one failure Silence or delay one cue under professional control; the learner stops and continues only through the established mobility method. Why: Failure reaches a safe stop without collision. Success check: Failure reaches a safe stop without collision. Accessible alternative: A visible, captioned or haptic version of “Silence or delay one cue under professional control; the learner stops and continues only through the established mobility method.” can rehearse the response sequence, but it removes the declared auditory stimulus and is therefore a related activity, not an equivalent attempt at Wearable navigation. To preserve the target, keep the authored sound and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “Failure reaches a safe stop without collision.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## 8. Compare and decide Report severity-weighted contacts, missed and false cues, speed, workload, auditory masking and user choice versus the ordinary aid. Why: Adoption is not inferred from detection accuracy alone. Success check: Adoption is not inferred from detection accuracy alone. Accessible alternative: A visible, captioned or haptic version of “Report severity-weighted contacts, missed and false cues, speed, workload, auditory masking and user choice versus the ordinary aid.” can rehearse the response sequence, but it removes the declared auditory stimulus and is therefore a related activity, not an equivalent attempt at Wearable navigation. To preserve the target, keep the authored sound and adapt only non-target access such as response input, instructions, breaks or support; retain this success check: “Adoption is not inferred from detection accuracy alone.” Alternative relationship: Related alternative changes trained or measured target Learner notes: ________________________________________________________________________________ Completed: [ ] ## Reflection What changed? ________________________________________________________________________________ What remains difficult? ________________________________________________________________________________ What will I repeat, adapt, ask for help with, or stop? ________________________________________________________________________________ --- Completion of this worksheet demonstrates tutorial participation only. It does not establish capability, qualification, safety clearance, diagnosis, treatment or independent validation.